56086815 has 16 divisors (see below), whose sum is σ = 90629856. Its totient is φ = 29616000.

The previous prime is 56086799. The next prime is 56086819. The reversal of 56086815 is 51868065.

It is not a de Polignac number, because 56086815 - 2⁴ = 56086799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56086819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16996 + ... + 20025.

It is an arithmetic number, because the mean of its divisors is an integer number (5664366).

Almost surely, 2^56086815 is an apocalyptic number.

56086815 is a deficient number, since it is larger than the sum of its proper divisors (34543041).

56086815 is a wasteful number, since it uses less digits than its factorization.

56086815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37130.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 56086815 is about 7489.1130983582. The cubic root of 56086815 is about 382.7838381928.

The spelling of 56086815 in words is "fifty-six million, eighty-six thousand, eight hundred fifteen".